Abstract: Systems and methods for protecting a cut end of an electrical conductor via the use of an end cap and an end cap attachment apparatus. The end cap attachment apparatus easily and quickly heat shrinks the end cap onto the electrical conductor, thereby sealing the end. The system comprises a heat-shrinkable end cap and an end cap installation apparatus. The end cap is placed over the cut end of electrical conductor. The apparatus comprises an inner heating chamber controlled through a control panel. The end cap installation apparatus applies heat evenly and rapidly to shrink and seal the end cap onto the cut end. The method comprises placing the cut end of the electrical conductor surrounded by an unshrunken end cap into the heating inner chamber for a sufficient time to shrink the end cap onto the end of the electrical conductor and then removing.